Remove unused variables, cc/ edition.

cc/trees/occlusion_tracker_perftest.cc

Index: cc/trees/occlusion_tracker_perftest.cc
diff --git a/cc/trees/occlusion_tracker_perftest.cc b/cc/trees/occlusion_tracker_perftest.cc
deleted file mode 100644
index 867544fcce5f82554c882f18d8f50ffaed24a3b7..0000000000000000000000000000000000000000
--- a/cc/trees/occlusion_tracker_perftest.cc
+++ /dev/null
@@ -1,220 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "cc/trees/occlusion_tracker.h"
-
-#include <stddef.h>
-
-#include "base/threading/thread_task_runner_handle.h"
-#include "base/time/time.h"
-#include "cc/animation/animation_host.h"
-#include "cc/debug/lap_timer.h"
-#include "cc/layers/layer_iterator.h"
-#include "cc/layers/solid_color_layer_impl.h"
-#include "cc/test/fake_impl_task_runner_provider.h"
-#include "cc/test/fake_layer_tree_host_impl_client.h"
-#include "cc/test/fake_output_surface.h"
-#include "cc/test/fake_proxy.h"
-#include "cc/test/fake_rendering_stats_instrumentation.h"
-#include "cc/test/test_shared_bitmap_manager.h"
-#include "cc/test/test_task_graph_runner.h"
-#include "cc/trees/layer_tree_host_impl.h"
-#include "cc/trees/layer_tree_impl.h"
-#include "cc/trees/single_thread_proxy.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "testing/perf/perf_test.h"
-
-namespace cc {
-namespace {
-
-static const int kTimeLimitMillis = 2000;
-static const int kWarmupRuns = 5;
-static const int kTimeCheckInterval = 10;
-
-class OcclusionTrackerPerfTest : public testing::Test {
- public:
-  OcclusionTrackerPerfTest()
-      : timer_(kWarmupRuns,
-               base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
-               kTimeCheckInterval),
-        output_surface_(FakeOutputSurface::Create3d()) {}
-  void CreateHost() {
-    LayerTreeSettings settings;
-    host_impl_ = LayerTreeHostImpl::Create(
-        settings, &client_, &impl_task_runner_provider_, &stats_,
-        &shared_bitmap_manager_, nullptr, &task_graph_runner_,
-        AnimationHost::CreateForTesting(ThreadInstance::IMPL), 1);
-    host_impl_->SetVisible(true);
-    host_impl_->InitializeRenderer(output_surface_.get());
-
-    std::unique_ptr<LayerImpl> root_layer = LayerImpl::Create(active_tree(), 1);
-    root_layer->test_properties()->force_render_surface = true;
-    active_tree()->SetRootLayer(std::move(root_layer));
-  }
-
-  LayerTreeImpl* active_tree() { return host_impl_->active_tree(); }
-
-  void SetTestName(const std::string& name) { test_name_ = name; }
-
-  void PrintResults() {
-    CHECK(!test_name_.empty()) << "Must SetTestName() before AfterTest().";
-    perf_test::PrintResult("occlusion_tracker_time",
-                           "",
-                           test_name_,
-                           1000 * timer_.MsPerLap(),
-                           "us",
-                           true);
-  }
-
- protected:
-  LapTimer timer_;
-  std::string test_name_;
-  FakeLayerTreeHostImplClient client_;
-  FakeImplTaskRunnerProvider impl_task_runner_provider_;
-  FakeRenderingStatsInstrumentation stats_;
-  TestSharedBitmapManager shared_bitmap_manager_;
-  TestTaskGraphRunner task_graph_runner_;
-  std::unique_ptr<OutputSurface> output_surface_;
-  std::unique_ptr<LayerTreeHostImpl> host_impl_;
-};
-
-TEST_F(OcclusionTrackerPerfTest, UnoccludedContentRect_FullyOccluded) {
-  SetTestName("unoccluded_content_rect_fully_occluded");
-
-  gfx::Rect viewport_rect(768, 1038);
-  OcclusionTracker tracker(viewport_rect);
-
-  CreateHost();
-  host_impl_->SetViewportSize(viewport_rect.size());
-
-  std::unique_ptr<SolidColorLayerImpl> opaque_layer =
-      SolidColorLayerImpl::Create(active_tree(), 2);
-  opaque_layer->SetBackgroundColor(SK_ColorRED);
-  opaque_layer->SetContentsOpaque(true);
-  opaque_layer->SetDrawsContent(true);
-  opaque_layer->SetBounds(viewport_rect.size());
-  active_tree()->root_layer()->AddChild(std::move(opaque_layer));
-  active_tree()->BuildLayerListAndPropertyTreesForTesting();
-
-  bool update_lcd_text = false;
-  active_tree()->UpdateDrawProperties(update_lcd_text);
-  const LayerImplList& rsll = active_tree()->RenderSurfaceLayerList();
-  ASSERT_EQ(1u, rsll.size());
-  EXPECT_EQ(1u, rsll[0]->render_surface()->layer_list().size());
-
-  LayerIterator begin = LayerIterator::Begin(&rsll);
-  LayerIterator end = LayerIterator::End(&rsll);
-
-  LayerIteratorPosition pos = begin;
-
-  // The opaque_layer adds occlusion over the whole viewport.
-  tracker.EnterLayer(pos);
-  tracker.LeaveLayer(pos);
-
-  gfx::Transform transform_to_target;
-  transform_to_target.Translate(0, 96);
-
-  do {
-    Occlusion occlusion =
-        tracker.GetCurrentOcclusionForLayer(transform_to_target);
-    for (int x = 0; x < viewport_rect.width(); x += 256) {
-      for (int y = 0; y < viewport_rect.height(); y += 256) {
-        gfx::Rect query_content_rect(x, y, 256, 256);
-        gfx::Rect unoccluded =
-            occlusion.GetUnoccludedContentRect(query_content_rect);
-        // Sanity test that we're not hitting early outs.
-        bool expect_empty =
-            query_content_rect.right() <= viewport_rect.width() &&
-            query_content_rect.bottom() + 96 <= viewport_rect.height();
-        CHECK_EQ(expect_empty, unoccluded.IsEmpty())
-            << query_content_rect.ToString();
-      }
-    }
-
-    timer_.NextLap();
-  } while (!timer_.HasTimeLimitExpired());
-
-  ++begin;
-  LayerIteratorPosition next = begin;
-  EXPECT_EQ(active_tree()->root_layer(), next.current_layer);
-
-  ++begin;
-  EXPECT_EQ(end, begin);
-
-  PrintResults();
-}
-
-TEST_F(OcclusionTrackerPerfTest, UnoccludedContentRect_10OpaqueLayers) {
-  static const int kNumOpaqueLayers = 10;
-  SetTestName("unoccluded_content_rect_10_opaque_layers");
-
-  gfx::Rect viewport_rect(768, 1038);
-  OcclusionTracker tracker(viewport_rect);
-
-  CreateHost();
-  host_impl_->SetViewportSize(viewport_rect.size());
-
-  for (int i = 0; i < kNumOpaqueLayers; ++i) {
-    std::unique_ptr<SolidColorLayerImpl> opaque_layer =
-        SolidColorLayerImpl::Create(active_tree(), 2 + i);
-    opaque_layer->SetBackgroundColor(SK_ColorRED);
-    opaque_layer->SetContentsOpaque(true);
-    opaque_layer->SetDrawsContent(true);
-    opaque_layer->SetBounds(
-        gfx::Size(viewport_rect.width() / 2, viewport_rect.height() / 2));
-    opaque_layer->SetPosition(gfx::PointF(i, i));
-    active_tree()->root_layer()->AddChild(std::move(opaque_layer));
-  }
-
-  active_tree()->BuildLayerListAndPropertyTreesForTesting();
-  bool update_lcd_text = false;
-  active_tree()->UpdateDrawProperties(update_lcd_text);
-  const LayerImplList& rsll = active_tree()->RenderSurfaceLayerList();
-  ASSERT_EQ(1u, rsll.size());
-  EXPECT_EQ(static_cast<size_t>(kNumOpaqueLayers),
-            rsll[0]->render_surface()->layer_list().size());
-
-  LayerIterator begin = LayerIterator::Begin(&rsll);
-  LayerIterator end = LayerIterator::End(&rsll);
-
-  // The opaque_layers add occlusion.
-  for (int i = 0; i < kNumOpaqueLayers - 1; ++i) {
-    LayerIteratorPosition pos = begin;
-    tracker.EnterLayer(pos);
-    tracker.LeaveLayer(pos);
-    ++begin;
-  }
-  LayerIteratorPosition pos = begin;
-  tracker.EnterLayer(pos);
-  tracker.LeaveLayer(pos);
-
-  gfx::Transform transform_to_target;
-  transform_to_target.Translate(0, 96);
-
-  do {
-    Occlusion occlusion =
-        tracker.GetCurrentOcclusionForLayer(transform_to_target);
-    for (int x = 0; x < viewport_rect.width(); x += 256) {
-      for (int y = 0; y < viewport_rect.height(); y += 256) {
-        gfx::Rect query_content_rect(x, y, 256, 256);
-        gfx::Rect unoccluded =
-            occlusion.GetUnoccludedContentRect(query_content_rect);
-      }
-    }
-
-    timer_.NextLap();
-  } while (!timer_.HasTimeLimitExpired());
-
-  ++begin;
-  LayerIteratorPosition next = begin;
-  EXPECT_EQ(active_tree()->root_layer(), next.current_layer);
-
-  ++begin;
-  EXPECT_EQ(end, begin);
-
-  PrintResults();
-}
-
-}  // namespace
-}  // namespace cc